- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16J - Pistonscylinderspressure vessels in generalsealings
- F16J 15/453 - Labyrinth packings characterised by the use of particular materials
Patent holdings for IPC class F16J 15/453
Total number of patents in this class: 51
10-year publication summary
|
3
|
9
|
2
|
4
|
5
|
1
|
5
|
3
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Heavy Industries, Ltd. | 8538 |
4 |
| NTN Corporation | 4976 |
3 |
| Aktiebolaget SKF | 2839 |
3 |
| Mitsubishi Hitachi Power Systems, Ltd. | 995 |
3 |
| Siemens AG | 24565 |
2 |
| Schaeffler Technologies AG & Co. KG | 9395 |
2 |
| Dresser-Rand Company | 217 |
2 |
| Goodrich Corporation | 2089 |
2 |
| Rtx Corporation | 9109 |
2 |
| General Electric Company | 17789 |
1 |
| The Boeing Company | 19911 |
1 |
| United Technologies Corporation | 2259 |
1 |
| Mitsubishi Electric Corporation | 44851 |
1 |
| AB SKF | 171 |
1 |
| Beijing Yurunhua Science and Technology Co., Ltd. | 2 |
1 |
| Bombardier Transportation GmbH | 655 |
1 |
| Bruss Sealing Systems GmbH | 20 |
1 |
| Federal-Mogul Corporation | 335 |
1 |
| Freudenberg-NOK General Partnership | 176 |
1 |
| Hydro-Thermal Corporation | 28 |
1 |
| Other owners | 17 |